Chiral helimagnetism and stability of magnetic textures in MnNb₃S₆

2023/04/27 by S. A. Osorio, V. Laliena, Osorio, S. A. +5
Physics and Astronomy · Materials Science · #Physics of Superconductivity and Magnetism #Magnetic and transport properties of perovskites and related materials #Theoretical and Computational Physics

paper · pdf · doi:10.48550/arxiv.2304.14277

Abstract

We analyze the nature of the modulated magnetic states in a micromagnetic model for the monoaxial chiral magnet MnNb₃S₆ for which the Dzyaloshinskii-Moriya interaction and the dipolar interaction compete evenly. We show that the interplay between these interactions lead to a complex phase diagram including ferromagnetic states, fan-like states, in-plane stripes patterns and chiral soliton lattices. In particular, stripe patterns and chiral soliton lattices comprise non-trivial topological states with fixed chirality. The obtained phase diagram exhibits strong dependency on the thickness and on the strength of the Dzyaloshinskii-Moriya interaction. Our results can help to understand the magnetic properties of systems such as MnNb₃S₆.

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